Acetolactate Decarboxylase from <i>Aerobacter aerogenes</i>

Abstract

Acetolactate decarboxylase has been highly purified from A. aerogenes . The purified enzyme does not need manganese for its activity as earlier described, and it is able to decarboxylate acetohydroxybutyrate, the second intermediate in the biosynthesis of isoleucine. The pH optimum in phosphate is 6.2–6.4.